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This addresses an error on MySQL 8.0.22 or later:
{{{
Character set 'utf8mb4_unicode_520_ci' cannot be used in conjunction with 'binary' in call to regexp_like
}}}
From the [https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-22.html MySQL 8.0.22 changelog]:
> Regular expression functions such as `REGEXP_LIKE()` yielded inconsistent results with binary string arguments. These functions now reject binary strings with an error. ([https://bugs.mysql.com/bug.php?id=98951 Bug #98951], [https://bugs.mysql.com/bug.php?id=98950 Bug #98950])
WordPress meta queries use the `BINARY` data type for case-sensitive meta key comparisons using regular expressions. By explicitly casting the meta key to `BINARY`, we can make sure the values being compared use the same character set and produce consistent results.
The change is covered by existing meta query unit tests: three tests which previously failed on MySQL 8.0.22 or later now pass.
References:
* [https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-22.html MySQL 8.0.22 changelog]
* [https://bugs.mysql.com/bug.php?id=104387 Bug #104387 CHARACTER_SET_MISMATCH issue with regex comparisons]
Follow-up to [46188].
Fixes #51740.
Built from https://develop.svn.wordpress.org/trunk@53901
git-svn-id: http://core.svn.wordpress.org/trunk@53460 1a063a9b-81f0-0310-95a4-ce76da25c4cd
48 lines
939 B
PHP
48 lines
939 B
PHP
<?php
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/**
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* WordPress Version
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*
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* Contains version information for the current WordPress release.
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*
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* @package WordPress
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* @since 1.2.0
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*/
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/**
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* The WordPress version string.
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*
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* Holds the current version number for WordPress core. Used to bust caches
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* and to enable development mode for scripts when running from the /src directory.
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*
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* @global string $wp_version
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*/
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$wp_version = '6.1-alpha-53901';
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/**
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* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
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*
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* @global int $wp_db_version
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*/
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$wp_db_version = 53496;
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/**
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* Holds the TinyMCE version.
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*
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* @global string $tinymce_version
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*/
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$tinymce_version = '49110-20201110';
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/**
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* Holds the required PHP version.
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*
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* @global string $required_php_version
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*/
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$required_php_version = '5.6.20';
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/**
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* Holds the required MySQL version.
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*
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* @global string $required_mysql_version
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*/
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$required_mysql_version = '5.0';
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